import router from '@/router'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import defaultSettings from '@/settings'
import config from '@/config'


NProgress.configure({ showSpinner: false }) // NProgress Configuration
const title = defaultSettings.title || 'Vue ElementPlus Admin'
const getPageTitle = (pageTitle) => {
  if (pageTitle) {
    return `${pageTitle} - ${title}`
  }
  return `${title}`
}

const whiteList = ['/login', '/auth-redirect', '/404'] // no redirect whitelist
router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)
  // console.log('路由拦截', from, to)

  // 当前端配置为不启动认证时，跳过认证
  if(!config.haveAuth){
    next()
    return null
  }

  // determine whether the user has logged in
  const token = getToken()
  if (token) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({path: '/'})
      NProgress.done() // hack: https://github.com/PanJiaChen/vue-element-admin/pull/2939
    } else {
      next()
    }
    // else {
    //   // determine whether the user has obtained his permission roles through getInfo
    //   const hasRoles = store.getters.roles && store.getters.roles.length > 0
    //   if (hasRoles) {
    //     next()
    //   } else {
    //     try {
    //       // get user info
    //       // note: roles must be a object array! such as: ['admin'] or ,['developer','editor']
    //       const { roles } = await store.dispatch('user/getInfo')
    //
    //       // generate accessible routes map based on roles
    //       const accessRoutes = await store.dispatch('permission/generateRoutes', roles)
    //
    //       // dynamically add accessible routes
    //       router.addRoutes(accessRoutes)
    //
    //       // hack method to ensure that addRoutes is complete
    //       // set the replace: true, so the navigation will not leave a history record
    //       next({ ...to, replace: true })
    //     } catch (error) {
    //       // remove token and go to login page to re-login
    //       await store.dispatch('user/resetToken')
    //       Message.error(error || 'Has Error')
    //       next(`/login?redirect=${to.path}`)
    //       NProgress.done()
    //     }
    //   }
    // }
  }
  else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
